webMethods Provider Webservice

We are facing an issue with clients using an exposed webservice.
The issue is the client are sending data via http 1.1 and the data is chunked.
When testing via SOAP UI we are rec the below error, any help would be greatly appreciated.

<SOAP-ENV:Envelope xmlns:SOAP-ENV=“http://www.w3.org/2003/05/soap-envelope” xmlns:SOAP-ENC=“http://www.w3.org/2003/05/soap-encoding” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xmlns:xsd=“XML Schema”>
SOAP-ENV:Header/
SOAP-ENV:Body
SOAP-ENV:Fault
SOAP-ENV:Code
SOAP-ENV:ValueSOAP-ENV:Sender</SOAP-ENV:Value>
</SOAP-ENV:Code>
SOAP-ENV:Reason
<SOAP-ENV:Text xml:lang="">[ISS.0088.9134] Exception occurred while processing the body of the message</SOAP-ENV:Text>
</SOAP-ENV:Role>
SOAP-ENV:Detail[ISS.0088.9155] this SOAPMessage does not contain a valid Envelope object</SOAP-ENV:Detail>
</SOAP-ENV:Fault>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>